1. Effect of seasonal and long-term changes in stress on sources of water to wells Author/Creator: Reilly, Thomas E. Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Book Access & Availability: Loading
2. Estimates of tracer-based piston-flow ages of groundwater from selected sites : National Water-Quality Assessment Program, 1992-2005 Author/Creator: Hinkle, Stephen R., author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2010 Resource Type: Book Access & Availability: Loading
3. Estimates of tracer-based piston-flow ages of groundwater from selected sites : National Water-Quality Assessment Program, 2006-10 Author/Creator: Shapiro, Stephanie Dunkle, author Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2012 Resource Type: Book Access & Availability: Loading